Begin executing the specified invokable functor in the specified new numThreads, using the specified thread attributes. Return numThreads on success, or the number of threads successfully started otherwise. INVOKABLE shall be a copy‐constructible type having the equivalent of void operator()(). Note that threads are always created joinable, regardless of the mode specified in attributes.
Synopsis
Declared in <bslmt_threadgroup.h>
template<class INVOKABLE>
int
addThreads(
INVOKABLE const& functor,
int numThreads,
ThreadAttributes const& attributes);
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